Key Structure Summary Diagram

Core Sensing Unit: Stable Zirconia Ceramic Tube/Rod + Porous Platinum Electrodes (both inside and outside).

Thermal Management Unit: Equipped with embedded heating resistors and thermocouples to ensure the core operates at a constant high temperature (≈750°C) work point.

Reference Gas System: The designed breathable channels provide an internal reference gas (air) with a constant O2 concentration.

Protective mechanical structure: Corrosion-resistant alloy housing (with diffuser holes/slots) + flange/threads for installation.

Electrical Seal Structure: High-performance ceramic-metal sealing joints ensure electrical isolation, airway separation, and long-term sealing.

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